Don't read the label on sportswear! There are technological fibers used in the manufacture of sportswear because they quickly remove perspiration, and they are soft and comfortable to wear. Some fibers also prevent the growth of bacteria and limit odors. A significant detail to the underwear. You may know more Lycra: it helps to have a very comfortable, good elasticity, ideal for keeping freedom of movement. Clothes also keep their shape longer and are less crease (always good to know for allergy ironing). Before buying a sports clothing, so you should evaluate some criteria: freedom of movement, limiting irritation (at the seams), wicking, soft and comfortable to the touch.